Scholarlink

<p>The development of polymer-based dielectric materials with high dielectric permittivity, low dielectric loss, and excellent thermal stability remains a significant challenge for advanced energy storage applications. In the present work, poly(3,4-ethylenedioxythiophene)-<i>b</i>-poly(ethylene glycol) (PEDOT-<i>b</i>-PEG), zeolite 13X, and nano-carbon black (CB) were individually incorporated into a polyvinylidene fluoride (PVDF) matrix using a solution-casting technique. The structural and morphological analysis were carried out by Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), and scanning electron microscopy (SEM) and confirmed the uniform dispersion of nanofillers in the PVDF matrix. The thermal stability was investigated by using thermogravimetric (TGA) analysis for the various nanofiller-incorporated nanocomposites, i.e., PVDF/zeolite13X, PVDF/CBNPs, and PVDF/PEDOT-<i>b</i>-PEG nanocomposites. The dielectric measurement including the dielectric constant (<i>ε</i>), loss tangent (tan<i>δ</i>), and AC conductivity (<i>σ</i><sub>ac</sub>) was carried out in the 50&#xa0;Hz–10&#xa0;MHz frequency range at room temperature. The PVDF/zeolite13X nanocomposite displayed the best performance out of all nanocomposites, with a high ε and relatively low tan<i>δ</i>, showing its potential in energy storage applications. A Cole–Cole plot revealed a semicircular arc formation for the nanocomposite with zeolite 13X and CB. The present comparative study provides valuable insights into the role of conductive and porous nanofillers in tailoring the dielectric behaviour of PVDF and offers an effective strategy for the design of lightweight, flexible, and high-performance dielectric materials for next-generation energy storage applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Tailoring Dielectric and Impedance Properties of PVDF Nanocomposites via Conductive and Porous Nanofillers for Energy Storage Applications

  • 期刊论文

  • 发表日期：

    2026年7月25日

查看全文
  • Shahnaz Kossar,
  • Asif Rasool,
  • A. S. Ismail,
  • Mohammad Ayaz Ahmad,
  • Kasim Sakran Abass,
  • Hamit Ismaili,
  • Syed Khalid Mustafa,
  • Rasha Jame,
  • Hatem A. Al-Aoh

摘要

The development of polymer-based dielectric materials with high dielectric permittivity, low dielectric loss, and excellent thermal stability remains a significant challenge for advanced energy storage applications. In the present work, poly(3,4-ethylenedioxythiophene)-b-poly(ethylene glycol) (PEDOT-b-PEG), zeolite 13X, and nano-carbon black (CB) were individually incorporated into a polyvinylidene fluoride (PVDF) matrix using a solution-casting technique. The structural and morphological analysis were carried out by Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), and scanning electron microscopy (SEM) and confirmed the uniform dispersion of nanofillers in the PVDF matrix. The thermal stability was investigated by using thermogravimetric (TGA) analysis for the various nanofiller-incorporated nanocomposites, i.e., PVDF/zeolite13X, PVDF/CBNPs, and PVDF/PEDOT-b-PEG nanocomposites. The dielectric measurement including the dielectric constant (ε), loss tangent (tanδ), and AC conductivity (σac) was carried out in the 50 Hz–10 MHz frequency range at room temperature. The PVDF/zeolite13X nanocomposite displayed the best performance out of all nanocomposites, with a high ε and relatively low tanδ, showing its potential in energy storage applications. A Cole–Cole plot revealed a semicircular arc formation for the nanocomposite with zeolite 13X and CB. The present comparative study provides valuable insights into the role of conductive and porous nanofillers in tailoring the dielectric behaviour of PVDF and offers an effective strategy for the design of lightweight, flexible, and high-performance dielectric materials for next-generation energy storage applications.